2004年麦吉尔大学的大鼠试验发现母鼠的某些特定行为使幼鼠大脑海马区的某些基因沉默，小鼠处理应激激素的能力因而下降。
A 2004 McGill University study of lab rats found that certain maternal behaviors can silence a gene in the hippocampi of their pups, leaving them less able to handle stress hormones.
沉默使她们不安，她们需要用交谈打破沉默，即使她们没什么可说的。
Silence intimidates them and they feel aneed to fill it, even if they have nothing to say.
人类携带有许多可以阻止肿瘤生长的基因，但是，如果表观基因组受到了破坏，就会有效地使这些基因沉默，使人体更有可能罹患癌症。
Humans carry a number of genes that stop tumours from growing, but disruption to the epigenome can effectively silence these genes, making it more likely a person will develop cancer.
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